Industrial Tech: Continue working on hot air balloons, last week's launch was successful
Life Science: Muscular system, Cat dissection examining the pectoral girdle
Government: Continue with the Presidents, looking at the use of social networks in some of the recent political upheavals
General Science: Begin the long awaited (for me anyway) Water Rocket Unit, Video- "Rocket Men"
Art: Finishing Junk Art, Critique of junk art (basically formal show and tell)
Please bring in plastic soda bottles. The more we have, the better.
Question of the Week:
Hank washes a car in 9 minutes. Bill washes the same car in 8 minutes. Dale washes the same car in 7 minutes. How long would it take to wash the car if they all worked at the same time?
Life Science: Muscular system, Cat dissection examining the pectoral girdle
Government: Continue with the Presidents, looking at the use of social networks in some of the recent political upheavals
General Science: Begin the long awaited (for me anyway) Water Rocket Unit, Video- "Rocket Men"
Art: Finishing Junk Art, Critique of junk art (basically formal show and tell)
Please bring in plastic soda bottles. The more we have, the better.
Question of the Week:
Hank washes a car in 9 minutes. Bill washes the same car in 8 minutes. Dale washes the same car in 7 minutes. How long would it take to wash the car if they all worked at the same time?
Each minute, Hank washes 1/9th of the car, Bill washes 1/8th of the car, and Dale washes 1/7th of the car.
1/9 + 1/8 + 1/7 = 56/504 + 63/504 + 72/504 = 191/504
This means that each minute, they wash 191 parts out of 504.
504/191 = 2.64 minutes
60 x 0.64 = 38.4
Final time is 2 minutes and 38.4 seconds.